/*
 * Summary: API to handle XML Pointers
 * Description: API to handle XML Pointers
 * Base implementation was made accordingly to
 * W3C Candidate Recommendation 7 June 2000
 * http://www.w3.org/TR/2000/CR-xptr-20000607
 *
 * Added support for the element() scheme described in:
 * W3C Proposed Recommendation 13 November 2002
 * http://www.w3.org/TR/2002/PR-xptr-element-20021113/  
 *
 * Copy: See Copyright for the status of this software.
 *
 * Author: Daniel Veillard
 */

#ifndef __XML_XPTR_H__
#define __XML_XPTR_H__

#include <libxml/xmlversion.h>

#ifdef LIBXML_XPTR_ENABLED

#include <libxml/tree.h>
#include <libxml/xpath.h>

#ifdef __cplusplus
extern "C" {
#endif

/*
 * A Location Set
 */
typedef struct _xmlLocationSet xmlLocationSet;
typedef xmlLocationSet *xmlLocationSetPtr;
struct _xmlLocationSet {
    int locNr;              /* number of locations in the set */
    int locMax;              /* size of the array as allocated */
    xmlXPathObjectPtr *locTab;/* array of locations */
};

/*
 * Handling of location sets.
 */

XMLPUBFUN xmlLocationSetPtr XMLCALL            
            xmlXPtrLocationSetCreate    (xmlXPathObjectPtr val);
XMLPUBFUN void XMLCALL            
            xmlXPtrFreeLocationSet    (xmlLocationSetPtr obj);
XMLPUBFUN xmlLocationSetPtr XMLCALL    
            xmlXPtrLocationSetMerge    (xmlLocationSetPtr val1,
                         xmlLocationSetPtr val2);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrNewRange        (xmlNodePtr start,
                         int startindex,
                         xmlNodePtr end,
                         int endindex);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrNewRangePoints    (xmlXPathObjectPtr start,
                         xmlXPathObjectPtr end);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrNewRangeNodePoint    (xmlNodePtr start,
                         xmlXPathObjectPtr end);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrNewRangePointNode    (xmlXPathObjectPtr start,
                         xmlNodePtr end);
XMLPUBFUN xmlXPathObjectPtr XMLCALL            
            xmlXPtrNewRangeNodes    (xmlNodePtr start,
                         xmlNodePtr end);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrNewLocationSetNodes    (xmlNodePtr start,
                         xmlNodePtr end);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrNewLocationSetNodeSet(xmlNodeSetPtr set);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrNewRangeNodeObject    (xmlNodePtr start,
                         xmlXPathObjectPtr end);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrNewCollapsedRange    (xmlNodePtr start);
XMLPUBFUN void XMLCALL            
            xmlXPtrLocationSetAdd    (xmlLocationSetPtr cur,
                         xmlXPathObjectPtr val);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrWrapLocationSet    (xmlLocationSetPtr val);
XMLPUBFUN void XMLCALL            
            xmlXPtrLocationSetDel    (xmlLocationSetPtr cur,
                         xmlXPathObjectPtr val);
XMLPUBFUN void XMLCALL            
            xmlXPtrLocationSetRemove    (xmlLocationSetPtr cur,
                         int val);

/*
 * Functions.
 */
XMLPUBFUN xmlXPathContextPtr XMLCALL    
            xmlXPtrNewContext        (xmlDocPtr doc,
                         xmlNodePtr here,
                         xmlNodePtr origin);
XMLPUBFUN xmlXPathObjectPtr XMLCALL    
            xmlXPtrEval            (const xmlChar *str,
                         xmlXPathContextPtr ctx);
XMLPUBFUN void XMLCALL                        
            xmlXPtrRangeToFunction    (xmlXPathParserContextPtr ctxt,
                                int nargs);
XMLPUBFUN xmlNodePtr XMLCALL        
            xmlXPtrBuildNodeList    (xmlXPathObjectPtr obj);
XMLPUBFUN void XMLCALL        
            xmlXPtrEvalRangePredicate    (xmlXPathParserContextPtr ctxt);
#ifdef __cplusplus
}
#endif

#endif /* LIBXML_XPTR_ENABLED */
#endif /* __XML_XPTR_H__ */
